Improvement in combined drill and saw-g-ummer



mnt @time WrLLIAMc. MARR, orrERU, WISCONSIN.

Letters Patent No. 92,983, dated July 27, 1869.

IMPROVEMENT IN COMBINED ADRILL AND SWG'UMMER.

The Schedule referred to in these Letters Patent and making 'aart of thesame.

which will enable others skilled in the art to make,

and use the saine, reference being had to the accompanying drawing,forming part of this specification, in whieh- Figure lis a side view ofmy improved machine, arranged as a drill.

Figure 2 is a side view of the same, arranged as a gummer; j

Figure 3 is-'a detail sectional view of the same, taken through the linex-x, fig. 1.

Similar letters of reference indicate corresponding parts. i

My invention has forits object to furnish a simple, convenient, andeiiective machine, which may be readily used as a drill or saw-grummel',as occasion may require, doing its work equally well in either capacity;and

It consists iu the construction and combination of the various parts ofthe machine, as hereinafter more fully described. y

A is the body, bar, or frame of the machine, whichis formed with anupwardly-projecting arm, or bracket,

c', to form a hearing for the outer end of the .drillshaft. l

'Ihe drill-shaft B is perforated longitudinally, the lower part of saidperforation being enlarged to serve as a socket, to receive the shankofthe drill.

lo the upper or outer end of the shaft B is attached a crank, C,bynieans of which the drill is operated.

rlhe upper part of the shaft B is turned down, and has a sleeve, D,placed upon it, having a screw-thread cut upon it, which screws int-o ascrew-thread cut in the perforation of the arm al.

The sleeve I) has a hand-wheel, d', formed upon or attached to its upperend, so that the drill may be fed forward to its work, by turning thesleeve D forward.

. rIhe ends ofthe bar, or vframe A project downward,

and have jaws c2 formed upon them, to receive the saw to be gummed,where it is secured in place when adjusted, and securely held whilebeing gummed by the set-screws E.

In casethe saw is very thin, it maybe supported while being gummed bythe cross-bar F, the ends of which rest in recesses formed in the jawsa2. l

When the machine is. to be used as a drill, the flanged plates G,attached to the upper ends of the screws H, are insertedin the jaws a2,and are screwed in said jaws by the set-screws E, as shown in iig. l.

The material to be drilled is placed upon the cross-j bar I, throughholes in the ends of which the screwsL H pass, and which is adjustablysecured in place by the -nuts J, placed one above and another below eachend of the said bar I, as shown in figs. l' and 3.

Upon one side ofthe main'barAis formed a flange, a, by means of whichthe machine may be secured in a vise, when desired.

It should be observed that the machine'may be used with yequal facilityin a horizontal or vertical position, as the charaeterof the work to bedone may require.

K is the oiler which I prefer tomake conical in shape, and which isconnected to the. har or frame A by the bent stem L, which is insertedin a hole in said bar, so that the position of the oiler may be adjustedvbe used.

AThe oil escapes through asmall hole in the point of the oil-pot K, andits ilow may be regulated as desired by a small wooden plug inserted inthe hole of the oiler, and which should be made of such a length as toproject above the upper end of the oil-pot K, so that it may beconveniently grasped, when required.

Having thus described my invention,

What Lclaim as new, and desire to secure by Letters Patent, is v 1. 'lhebar or frame A al, drill-shaft B, screw-sleeve D d', jaws a, andset-screws E, in combination with f each other, substantially as hereinshown and described, and for the purpose set forth.

' 2. The combination of the flange plates G, screws II, bar I, and nutsJ, with each other and with the purpose set forth.

WILLIAM C. MARR.

Witnesses G, Down,

J. GODINGTON.

according to the position in which the machine is to jaws a2 ofthe frameor bar A c1, substantially as here-

